Infiniti M45 (Y34). Manual — part 278
TROUBLE DIAGNOSIS
BRC-55
[VDC/TCS/ABS]
C
D
E
G
H
I
J
K
L
M
A
B
BRC
3.
CHECK THE HARNESS BETWEEN THE BRAKE FLUID LEVEL SENSOR AND THE VDC/TCS/ABS
CONTROL UNIT
1.
Turn the ignition switch OFF and disconnect the brake fluid level
sensor connector, VDC/TCS/ABS control unit, connectors.
2.
Check the continuity between the brake fluid level sensor har-
ness connector and the VDC/TCS/ABS control unit connector.
OK or NG
OK
>> Connect the connectors and conduct a VDC/TCS/ABS control unit self-diagnosis.
NG
>> If the open or short in harness, repair or replace the harness.
Inspection 14 CAN Communication System
AFS001KI
INSPECTION PROCEDURE
1.
CHECK CONNECTOR
1.
Turn ignition switch OFF, disconnect the VDC/TCS/ABS control unit connector, and check the terminal for
deformation, disconnection, looseness, and so on. If there is a malfunction, repair or replace the terminal.
2.
Reconnect connector to perform self-diagnosis.
Is “CAN COMM CIRCUIT” displayed in the self-diagnosis display items?
YES
>> Print out the self-diagnostic results, and refer to
LAN-21, "CAN Communication Unit"
NO
>> Connector terminal connection is loose, damaged, open, or shorted.
Inspection 15 When “SHIFT POSITION ERROR” Appears in Self-Diagnosis
Results Display
AFS001KJ
Inspection Procedure
1.
CHECKING SELF-DIAGNOSIS RESULTS
Check self-diagnosis results.
Does “SHIFT POSITION ERROR” appear in self-diagnosis results display?
YES
>> GO TO 2.
NO
>> Inspection is completed.
VDC/TCS/ABS control unit
(Harness connector E218)
Brake fluid level sensor
(Harness connector E73)
Continuity
40 (Y)
1 (Y)
Continuity
should exist.
40 (Y)
Ground
Continuity
should not exist.
Ground 2
(B)
continuity should
exist.
SFIA1939E
Self-diagnosis results
CONSULT-II display items
Shift position error
BRC-56
[VDC/TCS/ABS]
TROUBLE DIAGNOSIS
2.
DATA MONITOR CHECK
1.
Connect CONSULT-II. Start engine.
2.
In “DATA MONITOR” select “ITEM MENU” and then check P position.
OK or NG
OK
>> Perform VDC/TCS/ABS control unit self-diagnosis again.
NG
>> GO TO 3.
3.
CHECKING A/T PNP SWITCH
Perform the A/T PNP switch inspection. Refer to
AT-110, "DTC P0705 PARK/NEUTRAL POSITION SWITCH"
.
Do any self-diagnosis items appear?
YES
>> Repair the indicated items and perform VDC/TCS/ABS control unit self-diagnosis again.
NO
>> Perform VDC/TCS/ABS control unit self-diagnosis again.
Inspecting Components
AFS000M1
VDC OFF SWITCH
●
Disconnect VDC OFF switch connector. Check continuity
between terminal No. 1 and terminal No. 2.
VDC RELAY BOX
Disconnect VDC relay box harness connector E55, E56 and E57.
Check continuity, resistance value, and insulation between any pair
of terminals in the VDC relay box.
Selector lever position
Position
(data monitor)
P position
ON
Other than P position.
OFF
No.1 to No.2
When pressing the switch
: Continuity should exist.
When releasing the switch
: Continuity should not exist.
SFIA0986E
SFIA2215E
TROUBLE DIAGNOSIS
BRC-57
[VDC/TCS/ABS]
C
D
E
G
H
I
J
K
L
M
A
B
BRC
Continuity, Resistance
VDC ACTUATOR
Disconnect VDC actuator connectors. Check continuity and resistance value between any pair of terminals on
the actuator.
CAUTION:
Make sure actuator motor is correctly grounded.
SFIA0988E
SFIA0989E
BRC-58
[VDC/TCS/ABS]
TROUBLE DIAGNOSIS
Continuity, resistance
SFIA0990E
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